07 Mar 2023 --- As the all-important search for alternative proteins continues, one novel idea is sprouting - the use of cabbages as a plant-based sustainable source of protein. A UK-based farm has developed a method to extract protein from the brassica and is constructing a €38 million (US$40.5million) facility in England funded by Dutch state-controlled investment entity, Invest International.FoodIngredientsFirst examines how the humble cabbage may prove to be an unexpected source of nutrient-rich, adaptable plant-based proteins.